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Http_max_forwards

Macros

#define HTTP_MAX_FORWARDS_INIT()
 Initializer for structure http_max_forwards_t.
 
#define HTTPTAG_MAX_FORWARDS(x)
 Tag list item for pointer to a Max-Forwards header object.
 
#define HTTPTAG_MAX_FORWARDS_STR(s)
 Tag list item for string with Max-Forwards header value.
 

Enumerations

enum  { http_max_forwards_hash }
 

Functions

http_max_forwards_thttp_max_forwards_init (http_max_forwards_t x[1])
 Initialize a structure http_max_forwards_t.
 
int http_is_max_forwards (http_header_t const *header)
 Test if header object is instance of http_max_forwards_t.
 
http_max_forwards_thttp_max_forwards_dup (su_home_t *home, http_max_forwards_t const *hdr))
 Duplicate (deep copy) http_max_forwards_t.
 
http_max_forwards_thttp_max_forwards_copy (su_home_t *home, http_max_forwards_t const *hdr))
 Copy a http_max_forwards_t header structure.
 
http_max_forwards_thttp_max_forwards_make (su_home_t *home, char const *s))
 Make a header structure http_max_forwards_t.
 
http_max_forwards_thttp_max_forwards_format (su_home_t *home, char const *fmt,...)))
 Make a Max-Forwards header from formatting result.
 

Variables

msg_hclass_t http_max_forwards_class []
 Header class for HTTP Max-Forwards header.
 
msg_parse_f http_max_forwards_d
 Decode (parse) a Max-Forwards header.
 
msg_print_f http_max_forwards_e
 Encode (print) a Max-Forwards header.
 

Detailed Description

Macro Definition Documentation

◆ HTTP_MAX_FORWARDS_INIT

#define HTTP_MAX_FORWARDS_INIT ( )

Initializer for structure http_max_forwards_t.

A static http_max_forwards_t structure must be initialized with the HTTP_MAX_FORWARDS_INIT() macro. For instance,

#define HTTP_MAX_FORWARDS_INIT()
Initializer for structure http_max_forwards_t.
Definition http_protos.h:6592
Max-Forwards.
Definition http.h:249

◆ HTTPTAG_MAX_FORWARDS

#define HTTPTAG_MAX_FORWARDS (   x)

Tag list item for pointer to a Max-Forwards header object.

The HTTPTAG_MAX_FORWARDS() macro is used to include a tag item with a pointer to a http_max_forwards_t object in a tag list.

Parameters
xpointer to a http_max_forwards_t header structure, or NULL.

◆ HTTPTAG_MAX_FORWARDS_STR

#define HTTPTAG_MAX_FORWARDS_STR (   s)

Tag list item for string with Max-Forwards header value.

The HTTPTAG_MAX_FORWARDS_STR() macro is used to include a tag item with a string containing value of a http_max_forwards_t header in a tag list.

Parameters
spointer to a string containing http_max_forwards_t value, or NULL.

The HTTPTAG_MAX_FORWARDS_STR string can be converted to a http_max_forwards_t header structure by giving the string s has second argument to function http_max_forwards_make().

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
http_max_forwards_hash 

Hash of Max-Forwards header.

Function Documentation

◆ http_is_max_forwards()

int http_is_max_forwards ( http_header_t const *  header)
inline

Test if header object is instance of http_max_forwards_t.

The function http_is_max_forwards() returns true (nonzero) if the header class is an instance of Max-Forwards header object and false (zero) otherwise.

Parameters
headerpointer to the header structure to be tested
Returns
The function http_is_xmax_forwards() returns true (nonzero) if the header object is an instance of header max_forwards and false (zero) otherwise.

◆ http_max_forwards_copy()

http_max_forwards_t * http_max_forwards_copy ( su_home_t home,
http_max_forwards_t const *  hdr 
)
inline

Copy a http_max_forwards_t header structure.

The function http_max_forwards_copy() copies a header structure hdr. If the header structure hdr contains a reference (hdr->h_next) to a list of headers, all the headers in that list are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header structure hdr.

Parameters
homememory home used to allocate new structure
hdrpointer to the header structure to be duplicated

When copying, only the header structure and parameter lists attached to it are duplicated. The new header structure retains all the references to the strings within the old header, including the encoding of the old header, if present.

Example
max_forwards = http_max_forwards_copy(home, http->http_max_forwards);
http_max_forwards_t * http_max_forwards_copy(su_home_t *home, http_max_forwards_t const *hdr))
Copy a http_max_forwards_t header structure.
Definition http_protos.h:6786
Returns
The function http_max_forwards_copy() returns a pointer to newly copied header structure, or NULL upon an error.

◆ http_max_forwards_dup()

http_max_forwards_t * http_max_forwards_dup ( su_home_t home,
http_max_forwards_t const *  hdr 
)
inline

Duplicate (deep copy) http_max_forwards_t.

The function http_max_forwards_dup() duplicates a header structure hdr. If the header structure hdr contains a reference (hdr->x_next) to a list of headers, all the headers in the list are duplicated, too.

Parameters
homememory home used to allocate new structure
hdrheader structure to be duplicated

When duplicating, all parameter lists and non-constant strings attached to the header are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header.

Example
max_forwards = http_max_forwards_dup(home, http->http_max_forwards);
http_max_forwards_t * http_max_forwards_dup(su_home_t *home, http_max_forwards_t const *hdr))
Duplicate (deep copy) http_max_forwards_t.
Definition http_protos.h:6779
Returns
The function http_max_forwards_dup() returns a pointer to the newly duplicated http_max_forwards_t header structure, or NULL upon an error.

◆ http_max_forwards_format()

http_max_forwards_t * http_max_forwards_format ( su_home_t home,
char const *  fmt,
  ... 
)
inline

Make a Max-Forwards header from formatting result.

The function http_max_forwards_format() makes a new Max-Forwards header object using formatting result as its value. The function first prints the arguments according to the format fmt specified. Then it allocates a new header structure, and uses the formatting result as the header value.

Parameters
homememory home used to allocate new header structure.
fmtstring used as a printf()-style format
...argument list for format
Note
This function is usually implemented as a macro calling msg_header_format().
Returns
The function http_max_forwards_format() returns a pointer to newly makes header structure, or NULL upon an error.

◆ http_max_forwards_init()

http_max_forwards_t * http_max_forwards_init ( http_max_forwards_t  x[1])
inline

Initialize a structure http_max_forwards_t.

An http_max_forwards_t structure can be initialized with the http_max_forwards_init() function/macro. For instance,

http_max_forwards_t http_max_forwards;
http_max_forwards_init(&http_max_forwards);
http_max_forwards_t * http_max_forwards_init(http_max_forwards_t x[1])
Initialize a structure http_max_forwards_t.
Definition http_protos.h:6608

◆ http_max_forwards_make()

http_max_forwards_t * http_max_forwards_make ( su_home_t home,
char const *  s 
)
inline

Make a header structure http_max_forwards_t.

The function http_max_forwards_make() makes a new http_max_forwards_t header structure. It allocates a new header structure, and decodes the string s as the value of the structure.

Parameters
homememory home used to allocate new header structure.
sstring to be decoded as value of the new header structure
Note
This function is usually implemented as a macro calling http_header_make().
Returns
The function http_max_forwards_make() returns a pointer to newly maked http_max_forwards_t header structure, or NULL upon an error.

Variable Documentation

◆ http_max_forwards_class

msg_hclass_t http_max_forwards_class[]
extern

Header class for HTTP Max-Forwards header.

The header class http_max_forwards_class defines how a HTTP Max-Forwards header is parsed and printed. It also contains methods used by HTTP parser and other functions to manipulate the http_max_forwards_t header structure.


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